Home / 8,271.05-11,409.57-5,240.68

Finding the Fourth Proportional to 8,271.05, 11,409.57 and 5,240.68

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Solution

The fourth proportional to 8,271.05, 11,409.57 and 5,240.68 is: 7,229.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,271.05 : 11,409.57 = 5,240.68 : x
  2. Step 2: Convert to fraction form
    8,271.05/11,409.57 = 5,240.68/x
  3. Step 3: Cross multiply
    8,271.05x = 11,409.57 × 5,240.68
  4. Step 4: Simplify right side
    8,271.05x = 59,793,876.78
  5. Step 5: Solve for x
    x = 59,793,876.78/8,271.05
  6. Step 6: Final answer
    x = 7,229.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.